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37results about How to "Increase uplink capacity" patented technology

Method and apparatus for multi-user detection using RSFQ successive interference cancellation in CDMA wireless systems

A method and apparatus for using a multi-user detector for reducing multiple access interference (MAI) in a direct sequence CDMA wireless system such as W-CDMA. A superconducting rapid single flux quantum (RSFQ) RF digital receiver operating in combination with an RSFQ successive interference canceller (SIC) is located in the base stations of the wireless system. In the present invention, the RSFQ SIC is a vector machine capable of processing the cross-correlation matrices using an iterative method to decorrelate the user binary code sequences from the input signal in which the interference components are removed. According, the reduction in interference results in a significant increase in system capacity while improving cellular coverage area.
Owner:KIDIYAROVA SHEVCHENKO ANNA +2

Mobile station, base station, radio communication system, and communication control method

A mobile station is configured to send a base station a buffer status report explicitly indicating that the amount of a transmission signal in a buffer of the mobile station has become zero. This configuration makes it possible to efficiently allocate radio resources of an uplink shared channel and thereby to increase uplink capacity.
Owner:NTT DOCOMO INC

Virtual MIMO matching method for uplink multiuser equipment

The invention discloses a pairing method for virtual multi-input multi-output of up multi-user equipment UE, which is applied to condition that one sending antenna is used when each UE sends data and two sending antennae are used when a base station Node B receives data. The Node B pairs a plurality of UEs according to a codebook corresponding to each UE channel matrix so as to cause the inner product between column vectors of the codebooks corresponding to two paired UEs to be zero. An up virtual MIMO provided by the invention allows two UEs having sending antennae to transmit the data on the same resources (including the time, the frequency range resources, the spreading codes and the like). The pairing method can lower the dimension limit of an orthogonal system, and can increase the up capacity and the UE throughput.
Owner:ZTE CORP

Reference signal sequence transmission method and equipment

The embodiments of the invention provide a reference signal sequence transmission method and a piece of equipment. The method comprises the following steps: user equipment receives configuration information sent by a base station, wherein the configuration information is used to indicate a first basic sequence group allocated by the base station for the user equipment, the configuration information is generated by the base station based on a division mode of basic sequence groups in a communication system where the base station is located, the division mode divides the basic sequence groups in the communication system into multiple basic sequence sets, each basic sequence set contains at least one basic sequence group, at least one of the multiple basic sequence sets contains at least two basic sequence groups, and a first basic sequence set to which the first basic sequence group belongs is one of the multiple basic sequence sets; the user equipment determines a first basic sequence set according to the configuration information; and the user equipment generates a reference signal according to the first basic sequence set, and sends the reference signal to the base station.
Owner:HUAWEI TECH CO LTD

Method and system for uplink power control in time division duplex feedback enhanced system

The invention discloses a method and a system thereof for realizing uplink power control in a feedback enhancement system of time division duplex, which applies a bidirectional spectrum and comprises the following processes: a base station alternatively distributes uplink time slots in a wireless frame of the bidirectional spectrum to different terminals or different terminal groups; each terminal or each terminal group obtains the uplink time slots with the same interval; the base station chooses a unidirectional spectrum of a downlink to transfer a feedback signal of power control to the terminals; a wireless frame on the unidirectional spectrum and that on the bidirectional spectrum keep synchronous; the terminals transfer uplink signals within the distributed uplink time slots to the base station; the base station finishes parameter estimation within a specific delay and transfers a feedback signal of power control to the terminals by adopting the unidirectional spectrum; the terminals receive the feedback signal of power control on the unidirectional spectrum and regulate power control of terminals, thus preparing for transferring the uplink signals within downlink-uplink time slots distributed for the terminals within the same wireless frame. The invention realizes sending down the feedback signal of power control with high frequency of which the period is shorter than the length of the frame; besides, the feedback delay is small, and the system throughput is increased.
Owner:ZTE CORP

Method for scheduling uplink transmission in a wireless communication system and relevant devices

The present invention provides a method for scheduling uplink transmission in a relay-based wireless communication system. The method comprises: estimating step for estimating equivalent uplink channels of respective users whose uplink transmission is performed via a same relay station; calculating step for calculating orthogonality between the equivalent channels of said users; selecting step for selecting a combination of virtual multiple input multiple output users from said users, wherein the equivalent channels of the users in said combination of virtual multiple input multiple output users is conformable to the requirement of orthogonality; and scheduling step for scheduling the respective users in said combination of virtual multiple input multiple output users to perform uplink transmission cooperatively with a same time or frequency resource. By the present invention, time or frequency resource can be effectively saved without apparently reducing system capacity when the system's radio resource is scarce, and a proper quality of the signal receiption at the base station side is maintained.
Owner:ALCATEL LUCENT SAS

System, method and network appliance for implementing overlapping multi-region by one subdistrict

A system, a method and a network equipment for realizing that one small zone covers a plurality of zone. The system is composed of a plurality of radio-frequency groups and at least one baseband unit; one radio-frequency group corresponds to one zone in one small zone, one radio-frequency group corresponds to one data channel, one baseband unit is connected with a plurality of radio-frequency groups through a plurality of data channel; the radio-frequency groups are used to receive the upward signal transmitted by the user equipment in the corresponding zone and to transmit the upward signal to the baseband unit through the corresponding data channel, the radio-frequency groups receive the upward signal in the corresponding data channel and transmit the downward signal to the user equipment in the corresponding zone; the baseband unit receives the upper signal transmitted by the radio-frequency group in the data channel and transmits the downward signal to the corresponding radio-frequency group through the corresponding data channel. The implementation method of the present invention reduces the signal interface among the different zones in one small zone, and improves the capacity of the system; moreover, the method is favor of the break-up of the small zone, and the upgrading and the expansion of the capacity during the network evolution.
Owner:HUAWEI TECH CO LTD

Balancing capacity between link directions using variable feedback rates

A method for communication includes providing a first transceiver configured to communicate with a second transceiver over a bi-directional link having a first aggregation of frequencies that are assigned to carry first communication traffic in a first link direction from the first transceiver to the second transceiver and a second aggregation of frequencies that are assigned to carry second communication traffic in a second link direction from the second transceiver to the first transceiver. Communication feedback is transmitted from the first transceiver to the second transceiver communication feedback at an adaptive feedback rate. The feedback rate is determined so as to achieve a desired balance between the information carrying capacities of the first and second aggregations. An information carrying capacity of the second aggregation is controlled responsively to the communication feedback.
Owner:MARVELL ASIA PTE LTD

Method for increasing uploading system capacity of WCDMA multiple I/O terminal system

The method comprises following steps: 1) at signal emitting side, making STOB coding for source data block (Q-block) to form a STOB matrix; the STOB encoder outputs bit-stream gmk (l) (i|Q) to make channel mapping; wherein, gmk (l) (i|Q) represents a number i column data in number Q block in number k user emitted from number m antenna; while making channel mapping for gmk (l) (i|Q), a corresponding emitting antenna coding data is inserted into the parallel data of dedicated polite channel; 2) at signal receiving side, the Node B receiver identifies emitting antenna while making channel estimation to get a channel estimation value and an emitting antenna corresponding to the channel estimation value; 3) defining the emitting electromagnet coupling channel; 4) defining the system performance parameter.
Owner:ZTE CORP

Apparatus and method for creating signal and profiles at a receiving station

Apparatus, and an associated method, for creating a profile associated with burst data signals communicated to a base station of a fixed wireless access communication system. The profile is created to facilitate receive operations performed upon subsequent bursts of the burst data signal. The profile is stored at a storage device and retrieved when subsequent bursts of the bursts data signal are received at the base station.
Owner:RAZE TECH

Radio frequency complex reflection coefficient reader

A radio frequency (RF) circuitry includes a device that taps a transmission line and picks up some of electromagnetic signals traveling in both directions. The RF circuitry includes a first detector, a second detector, a third detector, and a processor. The first detector measures a power of a first portion of the tapped electromagnetic signal travelling in one direction. The second detector measures a power of a first portion of the tapped electromagnetic signal travelling in the other direction. The third detector measures a power of a combined signal which includes a second portion of the tapped electromagnetic signal travelling in the one direction and a second portion of the tapped electromagnetic signal travelling in the other direction. The processor determines, based on outputs from the detectors, a relative magnitude and a relative phase of the electromagnetic signals.
Owner:QORVO US INC

Devices and Methods for Asymmetrical Multicarrier Transmission and Reception

Devices and methods are disclosed which supplement a duplex frequency by providing one or more simplex frequencies and distributing a data load among them. Variations of the disclosed system include a server containing a scheduler in communication with a communications device. The server initially communicates with the communications device using a duplex channel. The scheduler determines when it is no longer optimal to use the single duplex channel, and distributes data among the duplex channel and one or more simplex channels. Before sending this data through multiple channels, the server must first send a schedule to the communications device, so the communications device knows which bits of data are coming through which channels at which times. The scheduler compiles this schedule and sends it to the communications device through the duplex channel. A descheduler within the communications device receives the schedule and alerts the communications device to start receiving data on other simplex channels. The descheduler then puts the bits of data in order as they stream in across the duplex and simplex channels.
Owner:AT&T MOBILITY II LLC

Method and system for improving uplink capacity of remote radio unit (RRU) merged cell

The invention discloses a method and system for improving uplink capacity of a remote radio unit (RRU) merged cell. The method comprises the following steps: multiple RRUs are connected to a baseband processing unit (BBU) of a base station, and the RRUs form a logic cell; the multiple RRUs report RTWP values of each sector at the same frequency point to the BBU unit through an Ir interface; the BBU reports the RTWP values of all sectors at the same frequency point under the logic cell to an RNC through a non-standard Iub interface; and the RNC receives the RTWP value of each sector at the same frequency point under the logic cell and a ground noise value of each sector under the logic cell, calculates the RoT of all sectors under the logic cell, and controls the uplink capacity of each sector according to the RoT of each sector and an RoT threshold. Thereby, the problem that part of the sectors have relatively large uplink capacity and other sectors cannot be accessed or have poor experience in case that the multiple RRUs are merged to the logic cell can be solved, and the uplink capacity of the multi-RRU merged cell can be improved.
Owner:ZTE CORP

CDMA up special physical information channel multi-user receiving apparatus

The present invention proposes multiuser receiver specially for upwards physical information in CDMA system. The present invention applies double-layer weighting parallel interference-eliminating method under multiple beam condition in special upwards physical channel of high speed data service and fuses intelligent antenna technology, high speed data package access technology and multiuser detecting technology together, so as to realize the multiuser receiver specially for upwards physical information in CDMA system. The device of the present invention has greatly raised upwards capacity, coverage and performance of CDMA system.
Owner:HUAWEI TECH CO LTD

Mobile station, base station, radio communication system, and communication control method

A mobile station is configured to send a base station a buffer status report explicitly indicating that the amount of a transmission signal in a buffer of the mobile station has become zero. This configuration makes it possible to efficiently allocate radio resources of an uplink shared channel and thereby to increase uplink capacity.
Owner:NTT DOCOMO INC

Antenna beam reciving processing method and device

ActiveCN103748806ATransceiver signal enhancementTo achieve combined useSpatial transmit diversityNetwork planningPhysicsActive antenna
The invention provides an antenna beam reciving processing method and device. The method comprises obtaining the downward inclination angle of an active antenna inner beam, the downward inclination angle of an active antenna outer beam, and the downward inclination angle of a passive antenna beam; determining when the the downward inclination angle of an active antenna inner beam, the downward inclination angle of an active antenna outer beam, and the downward inclination angle of a passive antenna beam meet preset conditions, the community covered by the active antenna outer beam uses the active antenna outer beam and the passive antenna beam to receive four antennas; or the community covered by the active antenna inner beam uses the active antenna inner beam and the passive antenna beam to receive four antennas. In the embodiment, the community covered by the active antenna inner beam or outer beam can receive four antennas, which enlarges upstream covering scope and raises upstream capacity.
Owner:HUAWEI TECH CO LTD

Information transmission method and system used for improving uplink capacity

The invention discloses an information transmission method and system used for improving uplink capacity, related to the field of communication. The information transmission method used for improvingthe uplink capacity comprises the following steps: a communication terminal uses a specified spread spectrum sequence to perform spectrum spreading on the uplink data to obtain spread spectrum information, and maps the spread spectrum information to a specified resource block for transmission, wherein all communication terminals located in the same set use the same resource block; and a receiver extracts transmission data from the specified resource block, and performs de-spreading on the transmission data with the corresponding spread spectrum sequence, so as to obtain the uplink data sent bythe communication terminal. The invention aims at the terminal characteristics of the mMTC scene of the 5G communication system, and the pseudo random sequence spread spectrum and the orthogonal frequency division multiplexing are combined, therefore, the existing resources are used more fully, the uplink capacity is greatly improved, and the reliability of uplink concurrent services of the maximum number terminals in the mMTC scene is ensured better.
Owner:CHINA TELECOM CORP LTD

Balancing capacity between link directions using variable feedback rates

A method for communication includes providing a first transceiver configured to communicate with a second transceiver over a bi-directional link having a first aggregation of frequencies that are assigned to carry first communication traffic in a first link direction from the first transceiver to the second transceiver and a second aggregation of frequencies that are assigned to carry second communication traffic in a second link direction from the second transceiver to the first transceiver. Communication feedback is transmitted from the first transceiver to the second transceiver communication feedback at an adaptive feedback rate. The feedback rate is determined so as to achieve a desired balance between the information carrying capacities of the first and second aggregations. An information carrying capacity of the second aggregation is controlled responsively to the communication feedback.
Owner:MARVELL ASIA PTE LTD

System, method and network appliance for implementing overlapping multi-region by one subdistrict

A system, a method and a network equipment for realizing that one small zone covers a plurality of zone. The system is composed of a plurality of radio-frequency groups and at least one baseband unit; one radio-frequency group corresponds to one zone in one small zone, one radio-frequency group corresponds to one data channel, one baseband unit is connected with a plurality of radio-frequency groups through a plurality of data channel; the radio-frequency groups are used to receive the upward signal transmitted by the user equipment in the corresponding zone and to transmit the upward signal to the baseband unit through the corresponding data channel, the radio-frequency groups receive the upward signal in the corresponding data channel and transmit the downward signal to the user equipment in the corresponding zone; the baseband unit receives the upper signal transmitted by the radio-frequency group in the data channel and transmits the downward signal to the corresponding radio-frequency group through the corresponding data channel. The implementation method of the present invention reduces the signal interface among the different zones in one small zone, and improves the capacity of the system; moreover, the method is favor of the break-up of the small zone, and the upgrading and the expansion of the capacity during the network evolution.
Owner:HUAWEI TECH CO LTD

Method and apparatus for digital subscriber line transfer

VDSL (Very-high-data-rate Digital Subscriber Line) technology uses at least one downlink frequency band (D1, D2) for conveying information from a data network to a subscriber's transceiver unit. At some sites VDSL technology cannot be used because no standardized uplink frequency band (U1, U2) is usable. The invention solves this problem by using at least one non-VDSL uplink frequency band (N1) for conveying information from the subscriber's transceiver unit to the data network.
Owner:WIRELESS LAN SYST

Signal processing method and device, and base station

The invention discloses a base station. The base station comprises array antennas and a base band unit BBU. The array antennas comprise n receiving ports. The n is an integer greater than or equal to 3. The array antennas are used for receiving uplink signals through m receiving ports in n receiving ports. The BBU is used for obtaining first uplink signals and second uplink signals, carrying out demodulation according to the first uplink signals and carrying out uplink scheduling according to the second uplink signals. The first uplink signals are the uplink signals received through the m receiving ports. The m is a positive integer greater than q and is not greater than n. The q is the number of the downlink beams of the array antennas. The second uplink signals are the uplink signals obtained by carrying out digital forming on the first uplink signals according to a downlink directional diagram of the array antennas. According to the base station provided by the embodiment of the invention, the utilization rate of the uplink performance of the antennas is improved; the cells in which user equipment are located will not be strongly interfered; and therefore, there are available resources for scheduling.
Owner:SHANGHAI HUAWEI TECH CO LTD

UE uplink specialized resource control method

The invention provides a UE uplink specialized resource control method. The method includes: when UE is about to enter a DRX sleep mode or after the UE enters the DRX sleep mode, an uplink specialized resource is released, and the UE enters an uplink out-of-step state. According to the method, when the ultra-long DRX is introduced, uplink specialized resources such as PUCCH and SRS etc. can be reasonably used, and the uplink capacity is increased.
Owner:BEIJING XINWEI TELECOM TECH

Antenna beam reception processing method and device

ActiveCN103748806BTransceiver signal enhancementTo achieve combined useSpatial transmit diversityNetwork planningActive antennaPhysics
The present invention provides an antenna beam reception processing method and apparatus, the method comprising: obtaining the downtilt angle of an active antenna inner beam, the downtilt angle of an active antenna outer beam and the downtilt angle of a passive antenna beam; when the downtilt angle of the active antenna inner beam, the downtilt angle of the active antenna outer beam and the downtilt angle of the passive antenna beam are judged to meet preset conditions, a cell covered by the active antenna outer beam using the active antenna outer beam and the passive antenna beam to perform four-antenna reception; or, a cell covered by the active antenna inner beam using the active antenna inner beam and the passive antenna beam to perform four-antenna reception. In the embodiment of the present invention, the cell covered by the active antenna inner beam or the cell covered by the active antenna outer beam can make use of four-antenna reception, therefore the uplink coverage area is broader and the uplink capacity is improved.
Owner:HUAWEI TECH CO LTD

Devices and methods for asymmetrical multicarrier transmission and reception

Devices and methods which supplement a duplex frequency by providing one or more simplex frequencies and distributing a data load among them are provided. In one aspect, the system includes a server containing a scheduler in communication with a communications device. The server initially communicates with the communications device using a duplex channel, determines when it is no longer optimal to use the single duplex channel, and distributes data among the duplex channel and one or more simplex channels. Before distributing the data, the server sends a schedule to the communications device via the duplex channel, so the communications device knows which bits of data are coming through which channels at which times. A descheduler within the communications device receives the schedule and alerts the communications device to start receiving data on other simplex channels. The descheduler then puts the bits of data in order as they stream in across the duplex and simplex channels.
Owner:AT&T MOBILITY II LLC

Uplink power optimal allocation method and device and mobile terminal

The invention discloses an uplink power optimal allocation method and device and a mobile terminal. The method comprises the steps of in a case that more than two communication connections are established between the mobile terminal and a base station, according to transmission quality of a downlink channel in each communication connection, allocating transmission power of the mobile terminal on each communication connection. According to the uplink power optimal allocation method and device and the mobile terminal which are disclosed by the invention, according to a water filling principle, in a case of considering channel quality, uplink power of double connections or multiple connections is subjected to optimal allocation, so that power allocation efficiency of the mobile terminal is improved, uplink capacity is promoted and system capacity reaches the maximum.
Owner:SHANGHAI ZTE SOFTWARE CO LTD

Method and system for uplink power control in time division duplex feedback enhanced system

The invention discloses a method and a system thereof for realizing uplink power control in a feedback enhancement system of time division duplex, which applies a bidirectional spectrum and comprises the following processes: a base station alternatively distributes uplink time slots in a wireless frame of the bidirectional spectrum to different terminals or different terminal groups; each terminal or each terminal group obtains the uplink time slots with the same interval; the base station chooses a unidirectional spectrum of a downlink to transfer a feedback signal of power control to the terminals; a wireless frame on the unidirectional spectrum and that on the bidirectional spectrum keep synchronous; the terminals transfer uplink signals within the distributed uplink time slots to the base station; the base station finishes parameter estimation within a specific delay and transfers a feedback signal of power control to the terminals by adopting the unidirectional spectrum; the terminals receive the feedback signal of power control on the unidirectional spectrum and regulate power control of terminals, thus preparing for transferring the uplink signals within downlink-uplink time slots distributed for the terminals within the same wireless frame. The invention realizes sending down the feedback signal of power control with high frequency of which the period is shorter than the length of the frame; besides, the feedback delay is small, and the system throughput is increased.
Owner:ZTE CORP

Power control method, device and base station

Provided are a power control method and device, and a base station. The method comprises: when the service type of a user equipment is a pre-designated service type, acquiring an HARQ process activation / deactivation mark of the user equipment; and in a deactivated HARQ process corresponding to the HARQ process deactivation mark of the user equipment, adjusting at least one of the power control related parameters, so as to reduce the transmitting power of the user equipment. By implementing the embodiments of the present invention, when a certain HARQ process is deactivated, the base station can notify the user equipment to reduce the transmitting power, so as to reduce the uplink interference, thereby increasing the uplink capacity of a system, reducing unnecessary power waste and improving the standby time of the user equipment.
Owner:NANJING ZHONGXING XIN SOFTWARE CO LTD

Information transmission method and system for improving uplink capacity

The invention discloses an information transmission method and system used for improving uplink capacity, related to the field of communication. The information transmission method used for improvingthe uplink capacity comprises the following steps: a communication terminal uses a specified spread spectrum sequence to perform spectrum spreading on the uplink data to obtain spread spectrum information, and maps the spread spectrum information to a specified resource block for transmission, wherein all communication terminals located in the same set use the same resource block; and a receiver extracts transmission data from the specified resource block, and performs de-spreading on the transmission data with the corresponding spread spectrum sequence, so as to obtain the uplink data sent bythe communication terminal. The invention aims at the terminal characteristics of the mMTC scene of the 5G communication system, and the pseudo random sequence spread spectrum and the orthogonal frequency division multiplexing are combined, therefore, the existing resources are used more fully, the uplink capacity is greatly improved, and the reliability of uplink concurrent services of the maximum number terminals in the mMTC scene is ensured better.
Owner:CHINA TELECOM CORP LTD

Method and system for error correction of decoded data by umts receiver

The invention provides a method and a system for correcting errors of decoded data by using a UMTS (Universal Mobile Telecommunications System) receiver. The method comprises the following steps: A, performing CRC (Cyclic Redundancy Check) on convolutional decoded data; B, retrieving in a remainder table. The method and the system have the beneficial effects that the remainder table is constructed by using two significant features of a convolutional decoding error result, and a corresponding error mode is obtained, so that re-correction of the decoded data is realized, and the problem that the conventional UMTS receiver cannot be used for further correcting the data after a convolutional decoding error is solved. The method provided by the invention can be implemented in the form of hardware as well as the form of a software functional module, and is not limited to the combination of hardware and software of any form. Over 50 percent of error packets in convolutional decoding error data packets can be corrected on average, the voice quality and signaling reliability are improved greatly, and the uplink capacity of the system is increased.
Owner:SHENZHEN INSTITUTE OF INFORMATION TECHNOLOGY
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